treatments-xml/data/06/3D/7D/063D7D5C8582D54F1593591BE9E9887F.xml

<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1020.57921" ID-GBIF-Dataset="be9c9837-e0f1-4870-98df-ce1d8788f6a1" ID-PMC="PMC7930015" ID-Pensoft-Pub="1313-2970-1020-1" ID-Pensoft-UUID="F6561609F0F15EE8907C94528CA44E4F" ID-PubMed="33708002" ID-ZooBank="CC23B8CE8C8E473CBD8C44E74252A33D" ModsDocID="1313-2970-1020-1" checkinTime="1614249414316" checkinUser="pensoft" docAuthor="Gunton, Laetitia M., Kupriyanova, Elena K., Alvestad, Tom, Avery, Lynda, Blake, James A., Biriukova, Olga, Boeggemann, Markus, Borisova, Polina, Budaeva, Nataliya, Burghardt, Ingo, Capa, Maria, Georgieva, Magdalena N., Glasby, Christopher J., Hsueh, Pan-Wen, Hutchings, Pat, Jimi, Naoto, Kongsrud, Jon A., Langeneck, Joachim, Meissner, Karin, Murray, Anna, Nikolic, Mark, Paxton, Hannelore, Ramos, Dino, Schulze, Anja, Sobczyk, Robert, Watson, Charlotte, Wiklund, Helena, Wilson, Robin S., Zhadan, Anna &amp; Zhang, Jinghuai" docDate="2021" docId="063D7D5C8582D54F1593591BE9E9887F" docLanguage="en" docName="ZooKeys 1020: 1-198" docOrigin="ZooKeys 1020" docPubDate="2021-02-24" docSource="http://dx.doi.org/10.3897/zookeys.1020.57921" docTitle="Paraonella sp. 1" docType="treatment" docVersion="4" id="F6561609F0F15EE8907C94528CA44E4F" lastPageNumber="1" masterDocId="F6561609F0F15EE8907C94528CA44E4F" masterDocTitle="Annelids of the eastern Australian abyss collected by the 2017 RV ' Investigator' voyage" masterLastPageNumber="198" masterPageNumber="1" pageNumber="1" updateTime="1668149828420" updateUser="ExternalLinkService">
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<mods:title>Annelids of the eastern Australian abyss collected by the 2017 RV ' Investigator' voyage</mods:title>
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<mods:namePart>Gunton, Laetitia M.</mods:namePart>
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<mods:namePart>Alvestad, Tom</mods:namePart>
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<mods:namePart>Hsueh, Pan-Wen</mods:namePart>
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<mods:namePart>Kongsrud, Jon A.</mods:namePart>
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<mods:namePart>Nikolic, Mark</mods:namePart>
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<mods:namePart>Paxton, Hannelore</mods:namePart>
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<mods:namePart>Ramos, Dino</mods:namePart>
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<mods:namePart>Sobczyk, Robert</mods:namePart>
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<mods:namePart>Watson, Charlotte</mods:namePart>
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<mods:namePart>Wiklund, Helena</mods:namePart>
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<mods:namePart>Wilson, Robin S.</mods:namePart>
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<mods:namePart>Zhadan, Anna</mods:namePart>
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<mods:namePart>Zhang, Jinghuai</mods:namePart>
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<mods:date>2021</mods:date>
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<mods:number>2021-02-24</mods:number>
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<mods:number>1020</mods:number>
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<treatment ID-GBIF-Taxon="179910872" LSID="urn:lsid:plazi:treatment:063D7D5C8582D54F1593591BE9E9887F" httpUri="http://treatment.plazi.org/id/063D7D5C8582D54F1593591BE9E9887F" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName authority="sp. 1" authorityName="sp. 1" class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">Paraonella sp. 1</taxonomicName>
<figureCitation captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Paraonidae A Aricidea sp., prostomium with median antennae B same, capillary with arista C Aricidea cf. simplex, dorsal view anterior (AM W. 52307) D same, ventral view anterior (AM W. 52307) E Levinsenia uncinata (AM W. 52320), methyl green stained dorsal view F Paraonella sp. 1 (AM W. 52310) G Paraonis cf. quadrilobata chaetae (AM W. 52307). Scale bars: 250 µm (A); 50 µm (B); 1 mm (C, D, E, F); 10 µm (G)." figureDoi="10.3897/zookeys.1020.57921.figure19" httpUri="https://binary.pensoft.net/fig/513287" pageId="0" pageNumber="1">Fig. 19F</figureCitation>
</paragraph>
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<subSubSection pageId="0" pageNumber="1" type="diagnosis">
<paragraph pageId="0" pageNumber="1">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="1">Complete specimen with 72 chaetigers, 0.3 mm maximum width, 8 mm total length. Prostomium oval, without apical organ, without eyes, two large nuchal organs, often with rusty pigmentation. Branchiae absent, notopodial post-chaetal lobes finger-like from chaetiger 1 to chaetiger 9, triangular, short afterwards, increasing in length for last 15 chaetigers. Pygidium rounded with three cirri approximately of the same length. Chaetae all capillaries. Methyl green staining: no pattern. The only complete specimen partially in a brittle, mucous tube.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="remarks">
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="1">
The absence of modified chaetae and prostomial antenna allows the assignation of these specimens to the genus 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella</emphasis>
</taxonomicName>
Strelzov, 1973. Currently the genus includes eight species, three of which are abranchiate, namely 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella monilaris" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="monilaris">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella monilaris</emphasis>
</taxonomicName>
(Hartman &amp; Fauchald, 1971), 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella myriamae" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="myriamae">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella myriamae</emphasis>
</taxonomicName>
(Laubier &amp; Ramos, 1974) and 
<taxonomicName authorityName="Fauchald &amp; Hancock" authorityYear="1981" class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella abranchiata" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="abranchiata">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella abranchiata</emphasis>
</taxonomicName>
Fauchald &amp; Hancock, 1981. Both 
<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. myriamae" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="myriamae">
<emphasis italics="true" pageId="0" pageNumber="1">P. myriamae</emphasis>
</taxonomicName>
and 
<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. abranchiata" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="abranchiata">
<emphasis italics="true" pageId="0" pageNumber="1">P. abranchiata</emphasis>
</taxonomicName>
are characterised by triangular prostomium, and can be readily distinguished from 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella</emphasis>
</taxonomicName>
sp. 1; 
<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. monilaris" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="monilaris">
<emphasis italics="true" pageId="0" pageNumber="1">P. monilaris</emphasis>
</taxonomicName>
, instead, has a rounded prostomium and a similar pattern of notopodial lobes, and might be closer to this species, even though the structure of nuchal organs is not clear from the original drawings. However, 
<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. monilaris" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="monilaris">
<emphasis italics="true" pageId="0" pageNumber="1">P. monilaris</emphasis>
</taxonomicName>
has moniliform segments, with clear constrictions in between, while 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella</emphasis>
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sp. has less pronounced constrictions and shorter segments. Moreover, although the size of the specimens examined by 
<bibRefCitation author="Hartman, O" journalOrPublisher="Allan Hancock Monographs in Marine Biology" pageId="0" pageNumber="1" pagination="1 - 327" publicationUrl="https://repository.si.edu/handle/10088/3458" refId="B169" refString="Hartman, O, Fauchald, K, 1971. Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic Areas. Part II. Allan Hancock Monographs in Marine Biology 6: 1 - 327, https://repository.si.edu/handle/10088/3458" title="Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic Areas. Part II." url="https://repository.si.edu/handle/10088/3458" volume="6" year="1971">Hartman and Fauchald (1971)</bibRefCitation>
is similar (&lt;8 mm for 71 chaetigers), they are slenderer (0.23 mm vs. 0.27-0.35 mm maximum width). According to the original drawing, notopodial lobes are proportionally shorter in 
<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. monilaris" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="monilaris">
<emphasis italics="true" pageId="0" pageNumber="1">P. monilaris</emphasis>
</taxonomicName>
, but the pattern described by 
<bibRefCitation author="Hartman, O" journalOrPublisher="Allan Hancock Monographs in Marine Biology" pageId="0" pageNumber="1" pagination="1 - 327" publicationUrl="https://repository.si.edu/handle/10088/3458" refId="B169" refString="Hartman, O, Fauchald, K, 1971. Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic Areas. Part II. Allan Hancock Monographs in Marine Biology 6: 1 - 327, https://repository.si.edu/handle/10088/3458" title="Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic Areas. Part II." url="https://repository.si.edu/handle/10088/3458" volume="6" year="1971">Hartman and Fauchald (1971)</bibRefCitation>
(lobes short, increasing until the eighth chaetiger, then shorter) is very similar to that observed in these specimens. Although the ecology of the two species is very similar and morphological features largely overlap, the difference between 
<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. monilaris" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="monilaris">
<emphasis italics="true" pageId="0" pageNumber="1">P. monilaris</emphasis>
</taxonomicName>
and 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella</emphasis>
</taxonomicName>
sp. is unclear as the original description of 
<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. monilaris" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="monilaris">
<emphasis italics="true" pageId="0" pageNumber="1">P. monilaris</emphasis>
</taxonomicName>
lacks detail.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella</emphasis>
</taxonomicName>
as currently described is most likely polyphyletic, including species close to 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paradoneis" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Paradoneis" order="Cirratulida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paradoneis</emphasis>
</taxonomicName>
Hartman, 1965 and to 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonis" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonis</emphasis>
</taxonomicName>
Grube, 1873. The pattern of notopodial lobes observed in this species clearly resembles that occurring in 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paradoneis" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Paradoneis" order="Cirratulida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paradoneis</emphasis>
</taxonomicName>
, as in the majority of the known 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella</emphasis>
</taxonomicName>
species. However, there is the possibility that 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paradoneis" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Paradoneis" order="Cirratulida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paradoneis</emphasis>
</taxonomicName>
-like 
<taxonomicName class="Polychaeta" family="Paraonidae" genus="Paraonella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paraonella" order="Phyllodocida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Paraonella</emphasis>
</taxonomicName>
also represent separate lineages that independently lost the modified notochaetae.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="records">
<paragraph pageId="0" pageNumber="1">Records.</paragraph>
<paragraph pageId="0" pageNumber="1">11 specimens. Suppl. material 1: ops. 33, 54 (AM).</paragraph>
</subSubSection>
</treatment>
</document>